MKI67 and neoplasm: The immunohistochemical results revealed that the tumor cells positively expressed smooth muscle actin (SMA), vimentin, CD34, S-100, cytokeratin (CK), calponin, WT-1, P63, CK7, H3K27me3, and Ki-67, with a positive index of approximately 70%, while these cells negatively expressed CD117, desmin, PAX-8, TFE3, and GATA3.